Waltee c



(No Movdel.)

-77. o. WESTAWAY.

WINDMILL.

No. 377,973. v'1177136 ted Peb. "14, 1888;

UNITED STATES PATENT OFFICE.

WALTER o; wRsTAwAY, or DEcoRAH, IowA, AssIGNoR or ONE-HALF rro ANDREW J. BENNETT,I or sAMn` PLAGE.

WINDMILI..

SPECIFICATION forming part of Letters Patent No. 377,973, dated February 14, 1888. l

Application filed September 17, 1887. Serial No. 249,928. (No model.)

To a/ZZ whom it may concern: Be it known that I, WALTER C. WEsTAWAY of Decorah, in the county of Winneshiek,and

in the State of Iowa, have invented certain new and useful Improvements in Windmills; and I do hereby declare that the following is a full, clear, and exact description thereof.

`My invention relates to windmills; and it consists in certain peculiarities of construction and combination of parts, to be hereinafter described with reference to thev accompanying drawings and subsequently claimed.

In the drawings, Figure 1 represents a side elevation, partlyin section, of a windmill constructed according to my invention; Fig. 2, a section taken on line 2 2, Fig. 1; Fig. 3, asimilar view taken on line 3 3, Fig. l; Fig. 4, a vertical transverse section taken on line 4 4, Fig. 3; Fig. 5, a horizontal section taken on line 5 5, Fig. l; and Fig. 6,a vertical transverse section taken on line 6`6, same figure.

Referring byletter to the drawings, A represents the tower, B the mast, C the casting that supports the wheel-shaft, D the wheelspider, E the eccentric, F the pitman, and G the pump-rod, all these parts being of the ordinary -construction and operative arrangement. Surrounding the mast B above the table H is a sleeve-,L that forms part of the casting C, and has a vertical arm, I', integral therewith or bolted thereto t'o form a continuation, I2, the latter being provided with lateral guides a for the pump-rod. y

Rearwardly extended from the sleeve I and its Vertical arm l' are lugs b b', and resting on these lugs are other lugs, c c', belonging to a casting, J, a rod, K, being passed through all of said lugs to serve as a pivot for the casting.

AThe casting J is provided with a socket, d,

for the shaft e of a vane, L, and a stay-rod, M,

One side of the casting J has a stop-arm, N, preferably provided with a buffer, f, of rubber, rawhide, or other elastic material, that comes against the vertical arm I' of the sleeve I when the wheel is full in the wind, as shown by Fig. 1, and the opposite side of this vertical arm has a right-angular lug or stop, g, to prevent the vane Lfrom describing more than a quarter of a circle when said wheel is brought or comes out of the wind.

Projecting from the vertical arm I of the sleeve I is a lug, O, through which passes the pivot-rod spindle, P, the latter having loosely arranged thereon a pinion,Q, that meshes with a toothed segment, R, forming part of a lug, casting J, this latter lug being perforated to permit the passage of said pivot-rod. y

Arranged on the spindle P and secured to the pinion Q is an arm, S that has connected thereto a chain, T, that passes over a pulley, T', on the extension I2 on the' arm I', and has its other end fastened to a pull-out rod, u, as illustrated by Fig. 1.

The pinion Q has lug Q', connected to a rod,

VV, that enters a cylinder, W, and this rod is provided with an` adjustable head, V. Arranged between the end z' of the cylinder W and thehead V' on the rod V is a spring, X, and said cylinder is provided with alaterallyextended stem, Y, that hasits bearing inl a sleeve, Z, the latter being integral with the casting C, forming the bearing for the wheel-- shaft.

The cylinder Wis preferably provided with a removable head or cap, W', and by removing this cap ready access is had to the head V' on the rod Y, so that said head may be adjusted to tighten or loosen the spring X.

When the wheel is full in the wind, the several parts constituting the mill stand in the position shown by Fig. 1, and should the velocity of the wind increase to such an extent as to cause said wheel to start out of the wind the movement of the vane will cause the toothsegment R onthe casting J to actuate the pinion Q, and thus draw the headed rodV against the resistance oi' the spring X. The resistance to the movement of the wheel gradually increases as the spring is compressed, and the cylinder Wv being pivoted to the casting C, said cylinder will tiltin proportion to the draw of the rod, and thus the position of the latter is always horizontal to prevent cramping.

As above described, it will be readily seen that the resistance is a variable one and is proportionate to the velocity of the wind, thereby K, and this lug has a socket, h, for a R', on the operating to keep the wheel up toits Work until the windlcurrents attain a veloeitysufieient to overcome said resistance and force said wheel entirely out of the wind. \Vhen the ve locity of the wind decreases, the expanding force of the spring X will automatically operate the rod V to actuate the pinion Q in a reverse direction to that already described, and thus the vane L will be brought back toward its original position in proportion to such de crease until the wheel is again full in the Wind, the stoparm N on the casting .I serving to limit this movement.

At anytime itis desirable to throw the wheel out of the wind,and thus stop the mill,the pullout rod T is operated to draw up the arm S, thereby actuating the pinion Q to bring the vane L into the same relative plane with said wheel.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-u l. In a windmill, the combination cfa pivotal vane-casting, a cylinder pivoted to the wheel`support, a rod having a loose bearing in one end ofthe cylinder, a spring inelosed by said cylinder and arranged on the rod to be actuated by a movement of the latter, and mechanism, substantially as described, for eon necting said vane-casting and rod, whereby a movement of one will actuate the other, as set forth.

2. In a windmill, the combination ofa pivetal vanecasting, a rod, a spring arranged ou the wheel-support to be contracted bya movenient of the rod, a toothed segment on the vane-casting, a pinion connected to said rod and arranged to mesh with the segment,an arm secured to the pinion, and a pull-out chain or rod united to thearm, substantially as set forth.

3. In a Windmill, the combination ofa pivotal vanecasting, a rod, a head adjustable on the rod,a spring arranged on the wheel-support to impinge against the head, and mechanism, substantially as described, for connectingsaid vane-casting and rod, whereby a movement ot' one will actuate the other, as set forth.

4. In a windmill, the combinationof a pivotal vanecasting, a cylinder, a removable head or cap for the cylinder, a rod having a loose bearing in the opposite end of the cylinder, a head adjustable on the rod, a spring inelosed by the cylinder and arranged to impinge against the head, and a mechanism, substantially as described, connecting` said vane-casting and rod, whereby a movement of one will actuate the other, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Decorah, in the county of Winneshiek and State of Iowa, in the presence of two witnesses.

\VALTER C. WESTAW AY.

Vi tnesscs:

C. W. BURDICK, A. J. BENNETT. 

